7 Year-End Tax Planning Strategies Every Houston Business Owner Should Know

An S-corp owner who runs a commercial cleaning company in Stafford saved $12,000 on his 2024 taxes. Not by finding some obscure loophole. By buying a pressure washer and a box truck in November instead of February.

The equipment was going on the books either way. He needed both items to take on larger contracts starting in January. The only question was when he wrote the check. By purchasing in November, he pulled $68,000 in equipment deductions into 2024, a year where his income was higher than expected. If he’d waited two months, those deductions would have landed in 2025, where they wouldn’t have done nearly as much good.

That’s what year-end tax planning is: making intentional decisions about timing and structure during October, November, and December that directly affect what you owe in April.

Most business owners don’t think about taxes until their accountant calls in February asking for documents. By then, the calendar has already closed. The decisions you can make after December 31st are limited. The decisions you can make before it are worth thousands.

Strategy 1: Accelerate Deductions Into the Current Year

If you know you’ll need supplies, equipment, services, or inventory in the first quarter of next year, buying them in December pulls the deduction into this year.

What qualifies:

• Office supplies and equipment
• Software renewals and subscriptions (prepay the annual license in December)
• Vehicle maintenance and repairs
• Marketing and advertising spend
• Professional services (pay your January accounting or legal invoice in December)
• Insurance premiums (prepay up to 12 months under the IRS 12-month rule)
• Inventory purchases (if you’re on cash basis)

What doesn’t work:

• Paying for something you don’t actually need (the IRS requires a legitimate business purpose)
• Prepaying more than 12 months of expenses (exceeds the IRS prepayment rule)
• Capital expenditures you don’t place in service before December 31st (equipment must be operational, not sitting in a box)

The cleaning company owner didn’t just buy the equipment. He had it delivered, set up, and used on a job before year-end. That matters. Section 179 and bonus depreciation require the asset to be “placed in service” during the tax year. Purchased but not yet in use doesn’t count.

Strategy 2: Defer Income to Next Year

This is the flip side of accelerating deductions. If you’re having a high-income year, pushing some revenue into January reduces this year’s taxable income.

For cash-basis businesses:

• Delay sending invoices until late December so payment arrives in January
• If a client asks “can I pay this in January?”, the answer might be yes for tax reasons
• Hold off on collecting outstanding receivables until after the new year (within reason)

The caution: Don’t defer income so aggressively that you create a cash flow problem. Taxes are important, but paying your employees and vendors is more important. And if you’re expecting a higher-income year next year, deferral works against you.

When deferral makes the most sense:

• You had an unusually high-income year (a big contract, a one-time project, a bonus)
• You expect lower income next year
• You’re close to a tax bracket boundary where additional income gets taxed at a higher marginal rate

A real estate agent in the Galleria area closed a large commercial deal in early December. The commission was $35,000. She asked the title company to hold the disbursement until January 2nd. That $35,000 moved from a year where she was already in the 32% bracket to a year where she expected to be in the 24% bracket. The timing saved her about $2,800 in federal taxes alone.

Strategy 3: Maximize Retirement Contributions

Retirement contributions are the most powerful deduction available to most business owners, and the deadline for most plans extends well past December 31st.

SEP-IRA: Contribution deadline matches your tax filing deadline (including extensions). So you can contribute as late as October 15th of the following year if you file an extension. But deciding in October or November to fund a SEP and knowing the amount gives you time to plan cash flow around the contribution.

Solo 401(k): The employee deferral portion must be elected by December 31st. The employer contribution portion can be made up to your tax filing deadline. If you want the full benefit, set up the plan and make the employee election before year-end.

SIMPLE IRA: Employee deferrals must be made by December 31st. If you have a SIMPLE IRA and haven’t maxed out contributions, November and December are your last chance for the current year.

The math matters. A $50,000 SEP-IRA contribution at a 32% marginal rate saves $16,000 in federal income tax. Plus, that money grows tax-deferred until retirement. It’s a deduction and an investment rolled into one.

If you don’t have a retirement plan set up yet, a SEP-IRA can be opened and funded before your filing deadline. A Solo 401(k) must be established by December 31st to make employee deferrals for the current year (though the employer contribution can come later).

Strategy 4: Review Your Entity Structure

January 1st is the natural effective date for entity changes, which means the review needs to happen in October or November.

The big question for LLC owners: Should you elect S-Corp taxation?

If you’re an LLC taxed as a sole proprietorship and your net business income consistently exceeds $50,000-$60,000 above a reasonable salary, the S-Corp election could save you thousands in self-employment tax.

The election for an existing LLC to be taxed as an S-Corp (Form 2553) must be filed by March 15th of the year you want it to take effect. But the planning, the payroll setup, and the salary determination should happen before January 1st so you’re ready to operate as an S-Corp from day one of the new year.

Other entity considerations:

• Should you convert from sole proprietorship to LLC for liability protection?
• If you have a partnership, does the profit-sharing allocation still reflect each partner’s contribution?
• If you’re a C-Corp, should you consider S-Corp election to avoid double taxation?

These conversations happen with your accountant during Q4. The changes take effect January 1st. If you wait until March, you’ve lost two months of potential savings.

Strategy 5: Harvest Capital Losses

If you have investments outside your business (stocks, crypto, other assets), check for unrealized losses before December 31st.

Selling an investment at a loss creates a capital loss that offsets capital gains dollar-for-dollar. If your capital losses exceed your capital gains, you can deduct up to $3,000 of excess losses against ordinary income per year (the rest carries forward).

Tax-loss harvesting steps:

1. Review your investment portfolio for positions trading below your cost basis
2. Sell positions with losses before December 31st
3. Use those losses to offset any capital gains realized during the year
4. Be aware of the wash-sale rule: you can’t buy a “substantially identical” security within 30 days before or after the sale, or the loss is disallowed

This strategy is especially valuable in years where you sold a property, a business asset, or stock at a gain. The capital losses directly reduce the tax on those gains.

Strategy 6: Make Charitable Contributions Strategically

For business owners who itemize deductions on their personal returns, bunching charitable contributions into a high-income year maximizes their impact.

Bunching strategy: Instead of giving $5,000 per year to charity, give $15,000 in a single year (three years’ worth). Take the standard deduction in the other two years. If the itemized deductions including the $15,000 charitable contribution exceed the standard deduction, you get a bigger total deduction over the three-year period than giving $5,000 annually.

Donor-advised funds (DAFs): Contribute to a DAF in December, take the full deduction this year, then distribute the funds to specific charities over the next several years. You get the tax benefit now and the giving flexibility later.

Business sponsorships. Paying for a chamber of commerce sponsorship, a youth sports team banner, or a charity event table is an advertising/marketing expense deductible on your business return, not subject to the charitable contribution limitations on your personal return.

Donate appreciated stock. If you own stock that’s gained value, donating it directly to a charity lets you deduct the full market value without paying capital gains tax on the appreciation. This is one of the most tax-efficient ways to give.

Strategy 7: Do a Year-End Financial Review

This isn’t a deduction, but it’s the strategy that makes all the others work. Sit down in October (not December, not January) and review your financial position:

Pull your year-to-date P&L. Where are you relative to last year? Relative to budget? What does projected full-year income look like?

Estimate your tax liability. Your accountant or tax advisor can run a projection based on 9-10 months of actual data. This tells you whether you’re going to owe, get a refund, or break even with your estimated payments.

Review your estimated tax payments. Have you been paying enough quarterly? Underpayment penalties kick in if you haven’t paid at least 90% of this year’s tax or 100% of last year’s tax (110% if your AGI exceeds $150,000). If you’re short, a larger Q4 estimated payment can reduce or eliminate the penalty.

Identify the moves. Based on your projected income, which strategies above make sense? Accelerate deductions? Defer income? Max out retirement? Buy equipment? The answers depend on your specific numbers.

Execute before December 31st. The window closes on New Year’s Eve. Every strategy above requires action before the calendar turns.

The October Meeting

That Stafford cleaning company owner doesn’t wait until tax season to think about taxes anymore. Every October, he sits down with us for a year-end planning meeting. We review his numbers through September, project his full-year income, and map out the moves.

Some years the list is short: max out the SEP, prepay some insurance, done. Other years, like the one with the pressure washer and box truck, the list is longer and the savings are bigger.

The common thread is timing. He’s making decisions in October and November when the options are wide open, not in February when the year is already closed.

If you’re reading this in October or November, you’re right on time. If you’re reading it in February, bookmark it for next fall. And either way, call us at (346) 389-5215 to schedule your year-end planning review. Thirty minutes of planning can save you thousands.

Have questions? Call us at (346) 389-5215 or visit our contact page to get started.